EMC: Data Assimilation Team

Grid-Point Statistical Interpolation (GSI)

The EMC GSI analysis system is used for the operational NOAA/NWS/NCEP/EMC global, regional, mesoscale, rapid refresh, Real-Time Mesoscale Analysis (RTMA) and hurricane forecast systems.

The content provided on this page supports NCEP Data Assimilation development. These are not official NWS products and should not to be relied upon for operational purposes. This web site is not subject to 24/7 support, and thus may be unavailable during system outages.